What is CVE-2026-67856?
CVE-2026-67856 is a vulnerability in open62541 versions 1.5.5 and earlier that allows a remote attacker to cause a denial of service. The attack is performed via crafted CreateSubscription, CreateMonitoredItems, Publish, TransferSubscriptions, and DeleteSubscriptions requests. Users should update open62541 to the latest version to mitigate this issue.
Azərbaycanca: CVE-2026-67856, open62541 kitabxanasının 1.5.5 və əvvəlki versiyalarında aşkar edilmiş zəiflikdir. Uzaqdan hücumçu xüsusi hazırlanmış OPC UA sorğuları vasitəsilə xidmət dayanıqlığını poza bilər (denial of service). Təsirə məruz qalmamaq üçün open62541-i ən son versiyaya yeniləmək tövsiyə olunur.
Related CVEs
link basis: same weakness class CWE-400
FAQ2
Which versions of the open62541 library are affected by CVE-2026-67856?
CVE-2026-67856 affects open62541 versions 1.5.5 and earlier.
What measure should be taken to protect against CVE-2026-67856?
To avoid being affected, users should update the open62541 library to the latest version.
See also6
This explainer is AI-written from source data — skopnix's own reporting on this CVE; CVSS scores, vendors and versions are never invented. See NVD for the official record.